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Unit 2 Review: Metric System, Scientific Method, Safety

Total questions: 211

Worksheet time: 3hrs 57mins

Name
Class
Date
1.

If a fire erupts, immediately

a)

notify the teacher

b)

run for the fire extinguisher

c)

throw water on the fire

d)

open the windows

2.

Approved eye protection devices (such as goggles) are worn in the laboratory

a)

to avoid eye strain

b)

to improve your vision

c)

only if you do not have corrective glasses

d)

any time chemicals, heat, or glassware are used

3.

If you do not understand a direction or part of a laboratory procedure, you should

a)

figure it out as you do the lab

b)

try several methods until something works

c)

ask the teacher before proceeding

d)

skip it and go on to the next part

4.

After completing an experiment, all chemical wastes should be

a)

left at your lab station for next class

b)

disposed of according to your teacher's directions

c)

dumped in the sink

d)

taken home

5.

You have been injured in the laboratory (cut, burn, etc.) First you should

a)

visit the school nurse after class

b)

see a doctor after school

c)

tell the teacher immediately

d)

apply first aid yourself

6.

Long hair in the laboratory must be

a)

cut short

b)

held away from the experiment with one hand

c)

always neatly groomed

d)

tied back or kept entirely out of the way with a hair band, etc.

7.

Which of the following should NOT be worn during a laboratory activity?

a)

loose clothing

b)

dangling jewelry

c)

sandals

d)

all of the above

8.

Horseplay, practical jokes, or pranks in the lab are

a)

always against the rules

b)

okay

c)

not dangerous

d)

okay if you are working alone

9.

When handling animals, students should

a)

open cages only with permission

b)

not tease or handle animals roughly

c)

report bites or scratches to the teacher immediately

d)

all of the above.

10.

If a piece of equipment is not working properly, stop, turn it off, and tell

a)

the principal

b)

your lab partner

c)

your best friend in the class

d)

the teacher

11.

When you finish working with chemicals, biological specimens, and other lab substances always

a)

treat your hands with skin lotion

b)

wash your hands thoroughly with soap and water

c)

wipe your hands on a towel

d)

wipe your hands on your clothes

12.

The following activity is permitted in the laboratory

a)

chewing gum

b)

eating

c)

drinking

d)

none of the above

13.

When using a razor blade or scalpel, always cut material

a)

away from you

b)

toward you

c)

in your hand

d)

perpendicular

14.

Before you leave the science room, you should

a)

clean your work area and equipment

b)

return all equipment to the proper storage area

c)

wash your hands with soap and water

d)

all of the above

15.

Work areas should be kept neat and clean.

a)

True

b)

False

16.

Laboratory work may be started immediately upon entering the laboratory even if the teacher is not yet present.

a)

True

b)

False

17.

Never remove chemicals, specimens, or other equipment from the laboratory.

a)

True

b)

False

18.

Read all procedures thoroughly before performing a laboratory investigation.

a)

True

b)

False

19.

You are allowed to enter the chemical preparations/storage area any time you need to get an item.

a)

True

b)

False

20.

It is okay to pick up broken glass with your bare hands as long as the glass is placed in the trash can.

a)

True

b)

False

21.

(a)   , practical jokes, and pranks will not be tolerated.

22.

Do not (a)   any equipment, supplies, animals, or materials without permission.

23.

Never eat, drink, chew gum, or (a)   anything in the science room.

24.

Wear (a)   when instructed. Never remove them during an experiment.

25.

Keep your work area in the science room (a)   and clean.

26.

Follow your teacher's instructions to (a)   of any waste materials.

27.

Cuts and burns are examples of (a)   , and should be reported to the teacher immediately.

28.

Broken equipment is an example of a(n)

a)

hazardous condition

b)

injury

c)

old lab supply

d)

careless student

29.

All of these are examples of accidents EXCEPT

a)

fires

b)

spills

c)

horseplay

d)

breakage

30.

When you return your equipment to the proper storage area, it should be... (select all that apply)

a)

clean

b)

done quickly

c)

stacked on the other supplies

d)

in working order

31.

Goggles protect your eyes from flying objects and

a)

your hands

b)

chemical splashes

c)

the eyewash station

d)

fire

32.

Keep your hands away from (select ALL that apply) while using science materials.

a)

face

b)

eyes

c)

mouth

d)

table

33.

Perform only authorized and ________ experiments.

a)

simple

b)

directed

c)

approved

d)

complex

34.

Follow all written and ______ instructions carefully.

a)

verbal

b)

typed

c)

colorful

d)

science

35.

(a)   any accident, injury, or hazardous condition to the teacher immediately.

36.

Do not taste or (a)   any chemicals unless specifically instructed to do so.

37.

Always carry a (a)   with BOTH hands.

38.

Never open or enter storage cabinets or (a)   without permission.

39.

Handle all (a)   with care, and do not pick up with bare hands if broken.

40.

To dress properly, long hair must be tied back, no dangling jewlery, and no loose or baggy (a)   .

41.

Wear (a)   to protect clothing when instructed.

42.

Consider all _________ in the science room to be dangerous.

a)

students

b)

chemicals

c)

surfaces

d)

goggles

43.

Handle all _______ with care and respect. (meow)

a)

organs

b)

aliens

c)

robots

d)

animals

44.

Use these CAREFULLY and only as instructed.

a)

animals

b)

medications

c)

sharp objects

d)

people

45.

It is okay to take things from the science room, and long as you return them in a timely manner.

a)

True

b)

False

46.

NEVER leave these unattended.

a)

hot plates

b)

scissors

c)

glassware

d)

lab partners

47.
A possible explanation to a problem that has not yet been tested. 
a)
data
b)
theory
c)
hypothesis
d)
fact
48.
What step does every scientific experiment begin with?
a)
hypothesis
b)
question/problem
c)
procedures
d)
conclusion
49.
The summary at the end of an experiment that explains the results. 
a)
conclusion
b)
procedures
c)
materials
d)
responding variable
50.

What is an observation?

a)

A scientific statement based on ideas

b)

Using your senses to notice what is going on around you

c)

To be unaware of your surroundings

d)

The question that you want an answer to.

51.
A testable answer to a scientific question
a)
Question
b)
Observation
c)
Hypothesis
d)
Experiment
52.

This is the very last thing to be done in the scientific method

a)

Draw a conclusion

b)

Record your data as results

c)

Share what you have learned with others

d)

Collaborate with others

53.
A series of steps used by scientists to solve a problem or answer a question. 
a)
scientific method
b)
recipe
c)
data collection
d)
metric system
54.
Which is NOT a step in the scientific method?
a)
Make observation
b)
Form a theory
c)
Collect data
d)
Form a hypothesis
55.
A hypothesis is simply a prediction that has not yet been _.
a)
proven or disproven
b)
made into a theory
c)
results calculated
d)
written about
56.
Should experiments be repeated over and over to see if the results are the same each time?
a)
yes
b)
no
57.
Testing a hypothesis often involves a(n):
a)
answer
b)
experiment
c)
problem
d)
safety check
58.
Observations made during an experiment are called:
a)
results
b)
problems
c)
conclusions
d)
questions
59.
The scientific method is made up of several:
a)
stones
b)
experiments
c)
problems
d)
steps
60.

What is the length of the red line?

a)

68.5 cm

b)

6.85 cm

c)

7.0 cm

d)

7.20 cm

61.

What is the length of the red line?

a)

12.8 cm

b)

13.20 cm

c)

12.80 cm

d)

12.5 cm

62.

What is the length of the red line?

a)

6.75 cm

b)

6.90 cm

c)

6.50 cm

d)

7.00 cm

63.

What is the length of the red line?

a)

9.80 cm

b)

10.99 cm

c)

10 cm

d)

9.98 cm

64.

What is the length of the red line?

a)

3.20 cm

b)

3.00 cm

c)

3 cm

d)

2.8 cm

65.

What is the length of the red line?

a)

2.0 cm

b)

1.7 cm

c)

1.10 cm

d)

1.50 cm

66.

What is the length of the red line?

a)

5.50 cm

b)

5.35 cm

c)

5.15 cm

d)

5.70 cm

67.

What is the length of the red line?

a)

9.00 cm

b)

9.0 cm

c)

9 cm

d)

10 cm

68.

What is the length of the red line?

a)

11.50 cm

b)

11.4 mm

c)

11.40 cm

d)

11.60 mm

69.

What is the length of the line?

a)

3.0 mm

b)

3.00 cm

c)

2.5 cm

d)

3.5 cm

70.

What is the basic unit used to measure length in the metric system?

a)

meter

b)

liter

c)

gram

d)

inch

71.

What is the definition of length?

a)

the amount of matter in an object

b)

the amount of space an object takes up

c)

the force of gravity on an object

d)

the distance from one point to another

72.

How many centimeters are in a meter?

a)

10 cm

b)

100 cm

c)

12 cm

d)

1000 cm

73.

How many millimeters are in a meter?

a)

3 mm

b)

10 mm

c)

100 mm

d)

1000 mm

74.

What would be the best metric unit to use to measure the distance from here to Indianapolis?

a)

meter

b)

kilometer

c)

mile

d)

centimeter

75.

1 meter = _ centimeters

a)

100

b)

1000

c)

10

d)

50

76.

1 kilometer = _ meters

a)

10

b)

100

c)

1000

d)

10,000

77.

1 centimeter = _ millimeters

a)

10

b)

100

c)

1000

d)

1

78.

Select the LONGEST length

a)

4 km

b)

4, 400 cm

c)

4,400 m

d)

4.2 km

79.

Select the SHORTEST length

a)

1020 mm

b)

2 m

c)

120 cm

d)

1.5 m

80.

What is the mass?

a)

.50kg

b)

.50g

c)

5.50g

d)

0.55g

81.

What is the mass?

a)

72.32g

b)

7.23g

c)

70.25g

d)

70.23g

82.

What is the mass?

a)

510.77g

b)

517.70g

c)

510.70g

d)

10.8g

83.

What is the mass?

a)

100.20g

b)

104.00g

c)

104.20g

d)

100.42g

84.

What is the mass?

a)

94.80g

b)

94.50g

c)

94.4g

d)

90.48g

85.
Anything made of matter must _____________________.
a)
take up space and have mass
b)
have mass and be a solid
c)
be a solid and not move
d)
take up space and be a liquid
86.

What is the metric measuring unit for mass?

a)

Meter

b)

Liter

c)

Pounds

d)

Grams

87.
What is mass?
a)
the distance between two points
b)

the amount of matter in an object

c)
the amount of space an object takes up
d)
the distance between three points
88.

Camila wants to know the mass of a liquid that is inside a glass. After measuring it, she records the following numbers.

The mass of the liquid is:

a)

50g

b)

30g

c)

20g

d)

80g

89.

Is the amount of matter in an object.

a)

Mass

b)

Volume

c)

Weight

d)

Density

90.

____________ is a measure of the mass combined with the force of gravity on an object.

a)

Mass

b)

Volume

c)

Weight

d)

Density

91.

What tool is used to measure mass?

a)

Graduated cylinder

b)

Meter stick

c)

Triple beam balance

d)

Ruler

92.
7,000 g = ____ kg
a)
70
b)
700
c)
7
d)
0.07
93.

What is the mass on this triple beam?

a)

142.0 g

b)

42 g

c)

102.0 g

d)

140.2 g

94.
What object is pictured here?
a)
Scale
b)
Pan balance
c)
Mass balance
d)
Triple beam balance
95.
The mass of an object ___________________________.
a)

does not change except when put under more gravity

b)

changes depending on which planet it is found

c)
changes, depending on temperature
d)
does not change
96.
This part slides across the beams and must fall within the notches for accurate measuring
a)
Pan
b)
Arms
c)
Beams
d)
Riders
97.
The riders slide across the _______ for measuring objects (10, 100, 1)
a)
Pointer
b)
Pan
c)
Beams
d)
Mass
98.

When using a triple beam balance you should always first_________________.

a)

zero out the balance

b)

move the ones rider (weight)

c)

start moving the hundred gram rider

d)

put the object you are measuring on the pan

99.

The final step of using a triple-beam balance is to

a)

slide all the riders over to the right

b)

add up your measurements for recording the total mass of the object

c)

move the smallest rider carefully until the scale is back to zero

d)

push down on the pan holding the object

100.
a)
22 mL
b)
24 mL
c)
25 mL
d)
21 mL
101.
a)
38 mL
b)
34 mL
c)
33 mL
d)
39 mL
102.
a)

22.0 mL

b)

21.0 mL

c)
24 mL
d)

20.2 mL

103.
a)
11 mL
b)
13 mL
c)
10.2 mL
d)

12.0 mL

104.
a)
24 mL
b)
28 mL
c)
30 mL
d)
29 mL
105.
a)

44.0 mL

b)
48 mL
c)

45.0 mL

d)
40.4 mL
106.
What is volume?
a)
The amount of space matter takes up
b)
The amount of matter in an object
c)
The distance between two points
d)
The amount of heat energy
107.
The curved surface at the top of a column of water is called the __________ . 
a)
arch 
b)
meniscus
c)
bowl
d)
scoop
108.
When reading a graduated cylinder, you should always read at eye level at the ___________ of the meniscus. 
a)
top
b)
middle
c)
bottom
d)
side
109.
The base unit of measure for volume is the __________ . 
a)
liter (L)
b)
gram (g)
c)
meter (m)
d)
Celsius ( °C)
110.

1 liter = _ milliliters

a)

10

b)

100

c)

1000

d)

1000000

111.

What is the volume of this prism?

a)

16 cubic cm

b)

36 cubic cm

c)

144 cubic cm

112.
10. A fish-tank has a length of 45 centimeters, a width of 25 centimeter and a depth of 10 centimeter. Find the volume of the fish-tank.
a)

10250 cm3

b)

11250 cm3

c)

11250 cm2

d)

10250 cm2

113.
Which tool measures liquid volume?
a)
Test tube
b)
Beaker
c)
Graduated cylinder
d)

metric ruler

114.
What is the volume of liquid in this graduated cylinder?
a)
40.0 mL
b)
40.3 mL
c)
43.0 mL
d)
44.0 mL
115.
What is the volume of the nail?
a)

15 cm3

b)

16 cm3

c)

1 cm3

d)

2 cm3

116.
At which point should your eyes be when you read a graduated cylinder? (Hint: see the letter next to the eye)
a)
A
b)
B
c)
C
117.

What is the volume of the rock in the picture?

a)

30 mL

b)

40 mL

c)

40 cm3

d)

10 cm3

118.

50.0 ml of water was added to the graduated cylinder. After we drop in the object, the new water level goes up to 60.0 ml. What is the volume of the blocks?

a)

8.0 cm3

b)

10.0 cm3

c)

60.0 cm3

d)

5.0 cm3

119.

Drake finds the volume of a graduated cylinder with a ring in it. The volume was 31 ml. If the volume before the penny was added was 23 ml. Then what is the volume displacement?

a)

11 ml

b)

8 ml

c)

14 ml

d)

9 ml

120.

What is the volume of ONE red sphere?

a)

4.0 cm3

b)

6.0 cm3

c)

2.0 cm3

d)

1.0 cm3

121.

What is the volume of the ring?

a)

64.0 cm3

b)

68.0 cm3

c)

8.0 cm3

d)

4.0 cm3

122.

What is the volume of the cylinder?

a)

10.0 cm3

b)

15.0 cm3

c)

8.0 cm3

d)

5.0 cm3

123.

How do you measure the volume of an irregular shaped object?

a)

Measure the length and width of the object

b)

Measure the mass of the object

c)

Use the water displacement method

d)

Measure the height of the object

124.

Which object has the greatest volume?

a)

The empty one

b)

The button

c)

The nail

d)

The battery

e)

The screw

125.

How many seconds in 1 year, 14 days, 3 hours and 16 minutes? (assume not a leap year). Be sure to include the unit with your answer.

(a)  

126.

It is the device used to measure temperature.

(a)  

127.

What is the thermometer measuring in?

a)
b)
128.

What is the scales pattern? What is it counting by?

a)

1s

b)

2s

c)

5s

129.

What is the temperature?

a)
b)
c)
d)
130.

What is the scale's pattern? What is it counting by?

a)

1s

b)

2s

c)

5s

d)

10s

131.

What is the temperature in °F?

a)

60 °F

b)

18 °F

c)

14 °F

d)

30 °F

132.

What is the temperature in °C ?

a)

60 °C

b)

18 °C

c)

14 °C

d)

30 °C

133.

What is the temperature in °F ?

a)

42 °F

b)

44 °F

c)

6 °F

d)

50 °F

134.

What is the scale's pattern? What is it counting by?

a)

1s

b)

2s

c)

5s

d)

10s

135.

What is the temperature?

a)

26 °F

b)

26 °C

c)

23 °F

d)

23 °C

136.

Used to find precise volume of liquids.

a)

Flask

b)

Beaker

c)

Graduated cylinder

d)

Thermometer

137.

Used to observe and magnify very small objects or organisms.

a)

Petri dish

b)

bunsen burner

c)

Microscope

d)

Funnel

138.

used to find the length of an object

a)

Meter stick

b)

Stop watch

c)

Electronic scale

d)

Spring scale

139.

Used to find the temperature of a substance.

a)

Thermometer

b)

Hand lens

c)

Beaker

d)

Test tube rack

140.
If you wanted to measure the mass of an object what would you use?
a)
pan balance
b)
triple beam balance
c)
spring scale
d)
graduated cylinder
141.
What tool is used to measure length?
a)
balance
b)
ruler
c)
thermometer
d)
graduated cylinder
142.
What tool is used to magnify objects?
a)
graduated cylinder
b)
balance
c)
hand lens
d)
thermometer
143.
What tool would you use to check the temperature of the water?
a)
ruler
b)
microscope
c)
thermometer
d)
ruler
144.
What tool is used to measure the volume of a liquid?
a)
thermometer
b)
hand lens
c)
graduated cylinder
d)
ruler
145.

Name this tool.

a)

Thermometer

b)

Triple Beam Balance

c)

Pan Balance

d)

Safety Goggles

146.

What is a graduated cylinder used for?

a)

Measures length

b)

Measures volume

c)

Measures mass

d)

Measures temperature

147.

A pipette is another name for a -

a)

Water Dropper

b)

Graduated Cylinder

c)

Spring Scale

d)

Thermometer

148.
What does this tool measure?
a)
volume
b)
weight
c)
mass
d)
temperature
149.
What property of liquid does this measure?
a)
mass
b)
density
c)
volume
d)
liquid
150.
What does this tool measure?
a)
speed
b)
density
c)
volume
d)
length
151.
What does this tool measure?
a)
temperature
b)
height
c)
weight
d)
distance
152.
What liquid measurement is being observed?
a)
height
b)
space
c)
volume
d)
density
153.
What unit of measurement is this measured in?
a)
millimeters
b)
kilometers
c)
milliliters
d)
grams
154.

Used to protect the eyes from foreign objects.

a)

Hand lens

b)

Microscope

c)

Goggles

d)

Funnel

155.

used to protect the body and clothes from chemicals and acids.

a)

Apron

b)

Spring scale

c)

Beaker

d)

Goggles

156.

Used to grip or lift objects.

a)

Flask

b)

Electronic scale

c)

Apron

d)

Tongs

157.

Used for stirring, mixing and heating liquids.

a)

Beaker

b)

Flask

c)

Test tube

d)

Dropper

158.

Used to find precise volume of liquids.

a)

Flask

b)

Beaker

c)

Graduated cylinder

d)

Thermometer

159.

Used to swirl and mix chemicals.

a)

Flask

b)

Beaker

c)

Test tube

d)

Meter stick

160.

Used to transfer small amounts of liquid.

a)

Dropper

b)

Flask

c)

Triple beam balance

d)

Stopwatch

161.

Used to hold, mix or heat small amounts of liquid.

a)

Dropper

b)

Flask

c)

Funnel

d)

Test tube

162.

Used to observe and magnify very small objects or organisms.

a)

Petri dish

b)

bunsen burner

c)

Microscope

d)

Funnel

163.

used to find the length of an object

a)

Meter stick

b)

Stop watch

c)

Electronic scale

d)

Spring scale

164.

Used to find the mass of an object

a)

Spring scale

b)

Stop watch

c)

Electronic scale

d)

Hand lens

165.

Used to find the force of an object in newton's.

a)

electronic scale

b)

Spring scale

c)

Tongs

d)

Petri dish

166.

Used to find the temperature of a substance.

a)

Thermometer

b)

Hand lens

c)

Beaker

d)

Test tube rack

167.

Before we create a hypothesis, we must first;

a)

Make an observation and ask a question

b)

Analyse the data

c)

Collect data

d)

Design the experiment

168.

The variable that you keep the same during an experiment

a)

Hypothesis

b)

Dependent variable

c)

Independent variable

d)

Control variable

169.

The variable that you change during an experiment

a)

Hypothesis

b)

Dependent variable

c)

Independent variable

d)

Control variable

170.

The variable that you measure during an experiment

a)

Hypothesis

b)

Dependent variable

c)

Independent variable

d)

Control variable

171.

Hypothesis should be in this format;

a)

If (independent variable), Then (dependent variable), becuase (a scientific reason)

b)

If (dependent variable), Then (independent variable), becuase (a scientific reason)

c)

a numbered step by step description on how to do the experiment

d)

If (independent variable), Then (control variables), becuase (a scientific reason)

172.

Which is the best hypothesis about paper helicopters?

a)

Some helicopters will take longer to reach the ground

b)

Helicopters with big "wings" will take longer to reach the ground.

c)

The length of the helicopter parts and the weight of the helicopter will change the time it takes to reach the ground

d)

Some helicopters will reach the ground faster

e)

Helicopters with 6cm "wings" will take longer to reach the ground than helicopters with 3cm "wings"

173.

A student changes how much water they give to a bean plant. After 4 weeks, they measure how many leaves each plant has. They kept the amount of sunlight and the soil the plants grew in the same.

What is a control variable?

a)

The amount of sunlight.

b)

The amount of water

c)

How many leaves on each plant

d)

How many beans on each plant

174.

A student changes how much water they give to a bean plant. After 4 weeks, they measure how many leaves each plant has. They kept the amount of sunlight and the soil the plants grew in the same.

What is the independent variable?

a)

The amount of sunlight

b)

The amount of water

c)

How many leaves on each plant

d)

How many beans on each plant

175.

Larry has a tree in his yard that has lots of leaves on it, while his neighbor has a tree with very few leaves. Larry’s tree has a lot more birds building nests in it than his neighbor.

Hypothesis:  

Trees with more leaves have more birds building nests in them.

What is the dependent variable?

a)

The type of tree

b)

The amount of leaves

c)

The amount of birds building nests

d)

The time of day

176.

Larry has a tree in his yard that has lots of leaves on it, while his neighbor has a tree with very few leaves. Larry’s tree has a lot more birds building nests in it than his neighbor.

Hypothesis:  

Trees with more leaves have more birds building nests in them.

Which type of variable is the time of year when the data is collected?

a)

Control variable

b)

Dependent variable

c)

Independent variable

d)

Evaluation

177.

In an experiment to find out how the temperature affects the bounce height of a ball, the dependent variable is ...

a)
temperature
b)
bounce height
c)
the thermometer
d)
the ruler
178.
Should experiments be repeated over and over to see if the results are the same each time?
a)
yes
b)
no
179.

The one variable in an experiment that is purposely changed and tested by the scientist is the________________.

a)

dependent variable

b)

independent variable

c)

data

d)

control group

180.

Research Question: Does the type of gasoline put in a car affect how fast the car can drive.

What is the independent variable?

a)

Type of gasoline

b)

which car the gas is put into

c)

how fast the car can drive

d)

how much gas is put into the car

181.
If I study for my scientific method quiz, then I will have a better test score. What is the dependent variable?
a)
Scientific Method
b)
Studying
c)
Independent variable
d)
Test score
182.
What is the independent variable?
a)
cost of mowing
b)
Moe's Mowing Service
c)
$18
d)
Mowing Time
183.

In a line graph you will find the independent variable on .... axis and the dependent variable on .... axis

a)

x , y

b)

y, x

c)

they can be switched

184.
A testable prediction about a scientific investigation is a(n)
a)
Question
b)
Observation
c)
Hypothesis
d)
Experiment
185.

How many independent variables should you have in an experiment?

a)

two

b)

as many as possible

c)

four

d)

one

186.

This part of the experiment serves as a basis of comparison; the group that does not receive the independent variable.

a)

constant

b)

control group

c)

experimental group

d)

hypothesis

187.

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid: water, apple juice, or milk. What should be kept constant? 

a)
type of plant, flower pot,  soil, and amount of sunlight
b)
water, apple juice, milk
c)
only the amount of sunlight
d)
type of plant only
188.
A series of steps used by scientists to solve a problem or answer a question. 
a)
scientific method
b)
recipe
c)
data collection
d)
metric system
189.

This is the group that is affected by the variable or the group that is changed.

a)

Control Group

b)

Experimental Group

c)

Changed Group

d)

Cool Group

190.
This is the group that we will compare our experimental group to. This group stays "normal."
a)
Control Group
b)
Experimental Group
c)
 Normal Group
d)
Weird Group
191.

If I floss more, then I will have fewer cavities. What is the independent variable?

a)

Number of cavities

b)

Amount of flossing

c)

Type of floss used

d)

Amount of brushing

192.

What is the independent variable on this graph?

a)

Number of push ups

b)

Days

193.

During which month did Sam have a weight of 73 Kg?

a)

January

b)

February

c)

May

d)

March

194.
What is a constant? 
a)
the normal situation
b)
the thing we measure in the end
c)
the thing we are testing
d)
the thing we keep the same for every part of the experiment
195.
What is the dependent variable?
a)
Grade
b)
Number of Students
196.

What is the independent variable?

a)

Months

b)

Temperature

c)

Highs

d)

Lows

197.

This variable is the one thing that changed on purpose...

a)

Dependent Variable

b)

Control

c)

Independent Variable

198.

What is the DEPENDENT variable (effect) in this experiment?


"Does eating breakfast improve test scores?"

a)

eating breakfast or not

b)

the grade you got on the test

c)

what time you get up in the morning

d)

how tasty the breakfast is

199.

You are testing how the amount you water a plant affects its growth. What would be the INDEPENDENT VARIABLE in this experiment.

a)

They type of pot you put the plants in.

b)

The amount you water each plant.

c)

The amount of sunlight the plants get.

d)

The amount the plant grows.

200.

Mr. Pransky wants to see how different surfaces affect how high a tennis ball can bounce. What is the independent variable?

a)

the different surfaces

b)

using the same ball

c)

how high they bounce

201.

A student wants to test the hypothesis of "If salt is added to water then the boiling point of water will decrease (go down)." What is the independent variable?

a)

Whether salt is added or not

b)

Boiling Point

c)

Amount of water

202.

If you were testing the time it took for objects of different sizes to reach the ground after being dropped from 30 feet in the air, which of these would be the DEPENDENT VARIABLE?

a)

The time it takes for each object to hit the ground.

b)

The size of each object.

c)

The type of object you use.

d)

The height you drop the object from

203.

Why do we use graphs in science?

a)

to record and display data

b)

to show trends in data

c)

to predict what will happen if we extend the experiment

d)

all of these are correct

204.

Sadie is testing how the age of a seed affects how fast plants grow. Look at the picture to see if you can figure out what makes her experiment unfair. Mark all that apply.

a)

She used different types of seeds/plants.

b)

The plants are in different pots.

c)

She did not plant very many plants.

d)

Seed age might not make a difference.

205.

What is the manipulated variable?

a)

what we are changing or testing

b)

what we are observing or measuring

c)

what we keep the same to make the experiment fair

206.

What is the responding variable?

a)

what we are changing or testing

b)

what we are observing or measuring

c)

what we are keeping the same to make the experiment fair

207.

What are the constant variables?

a)

what we are changing or testing

b)

what we are observing or measuring

c)

what we keep the same to make the experiment fair

208.

Scientific Question: Does being tardy impact test scores?

What is the manipulated variable?

a)

test scores

b)

the time a student arrives to class

c)

amount of time to complete test

209.

Scientific Question: Does being tardy impact test scores?

What is the responding variable?

a)

test scores

b)

the time a student arrives to class

c)

amount of time to complete test

210.

Scientific Question: Does being tardy impact test scores?

What is one of the constant variables?

a)

test scores

b)

the time a student arrives to class

c)

amount of time to complete test

211.

Scientific Question: Will a person fall asleep faster if they listen to music?

What is the manipulated variable?

a)

music

b)

time to fall asleep

c)

person

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